[PATCH -next] visorbus: fix error return code in visorchipset_init()

[Wei Yongjun]

Fix to return negative error code -ENODEV from the visor_check_channel()
error handling case instead of 0. Also change the error code to -ENOMEM
in kzalloc() error case.

Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/visorbus/visorchipset.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/visorbus/visorchipset.c b/drivers/visorbus/visorchipset.c
index cb1eb7e05f87..5668cad86e37 100644
--- a/drivers/visorbus/visorchipset.c
+++ b/drivers/visorbus/visorchipset.c
@@ -1561,7 +1561,7 @@ static void controlvm_periodic_work(struct work_struct 
*work)
 
 static int visorchipset_init(struct acpi_device *acpi_device)
 {
-       int err = -ENODEV;
+       int err = -ENOMEM;
        struct visorchannel *controlvm_channel;
 
        chipset_dev = kzalloc(sizeof(*chipset_dev), GFP_KERNEL);
@@ -1584,8 +1584,10 @@ static int visorchipset_init(struct acpi_device 
*acpi_device)
                                 "controlvm",
                                 sizeof(struct visor_controlvm_channel),
                                 VISOR_CONTROLVM_CHANNEL_VERSIONID,
-                                VISOR_CHANNEL_SIGNATURE))
+                                VISOR_CHANNEL_SIGNATURE)) {
+               err = -ENODEV;
                goto error_delete_groups;
+       }
        /* if booting in a crash kernel */
        if (is_kdump_kernel())
                INIT_DELAYED_WORK(&chipset_dev->periodic_controlvm_work,